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Investments and Fair Value Measurements - Components of Investments (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Cost Basis | $ 71,423 | $ 105,546
Unrealized Gains (Losses) | (215) | (22)
Market Value | 71,208 | 105,524
Cash and Cash Equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 9,438 | 38,301
Short-term Investments and Marketable Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 59,748 | 55,179
Long-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 2,022 | 12,044
Level 1 | Money market fund |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost Basis | 9,438 | 38,301
Unrealized Gains (Losses) | 0 | 0
Market Value | 9,438 | 38,301
Level 1 | Money market fund | Cash and Cash Equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 9,438 | 38,301
Level 1 | Money market fund | Short-term Investments and Marketable Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 | 0
Level 1 | Money market fund | Long-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 | 0
Level 1 | U.S. Treasuries |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost Basis | 17,985 |
Unrealized Gains (Losses) | (82) |
Market Value | 17,903 |
Level 1 | U.S. Treasuries | Cash and Cash Equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 |
Level 1 | U.S. Treasuries | Short-term Investments and Marketable Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 17,903 |
Level 1 | U.S. Treasuries | Long-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 |
Level 1 | U.S. Treasury bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost Basis |  | 8,171
Unrealized Gains (Losses) |  | 0
Market Value |  | 8,171
Level 1 | U.S. Treasury bonds | Cash and Cash Equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value |  | 0
Level 1 | U.S. Treasury bonds | Short-term Investments and Marketable Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value |  | 8,171
Level 1 | U.S. Treasury bonds | Long-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value |  | 0
Level 2 | Commercial paper |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost Basis | 23,110 | 23,312
Unrealized Gains (Losses) | 0 | 0
Market Value | 23,110 | 23,312
Level 2 | Commercial paper | Cash and Cash Equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 | 0
Level 2 | Commercial paper | Short-term Investments and Marketable Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 23,110 | 23,312
Level 2 | Commercial paper | Long-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 | 0
Level 2 | Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost Basis | 15,397 | 20,107
Unrealized Gains (Losses) | (130) | (14)
Market Value | 15,267 | 20,093
Level 2 | Corporate bonds | Cash and Cash Equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 | 0
Level 2 | Corporate bonds | Short-term Investments and Marketable Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 13,245 | 8,049
Level 2 | Corporate bonds | Long-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 2,022 | 12,044
Level 2 | Asset-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost Basis | 5,493 | 15,655
Unrealized Gains (Losses) | (3) | (8)
Market Value | 5,490 | 15,647
Level 2 | Asset-backed securities | Cash and Cash Equivalents |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 0 | 0
Level 2 | Asset-backed securities | Short-term Investments and Marketable Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | 5,490 | 15,647
Level 2 | Asset-backed securities | Long-term Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Market Value | $ 0 | $ 0

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